Atom String Quartet is one of the most intriguing string quartets in the world, and also one of best Polish jazz bands. The group combines the capabilities of a string quartet (i.e. two violins, viola and cello) with improvisation in its broad sense. The set of instruments of a chamber music ensemble, which is most classic and firmly established in music tradition, enables the artists to search for new sound and formal achievements. It is difficult to define, in an explicit way, the music style of the group. Its music output, besides jazz, shows sources of inspiration coming from Polish folk, music of various regions of the world, and also contemporary and classical music.